CN212567295U

CN212567295U - Surgical instrument calibration device based on binocular vision navigation

Info

Publication number: CN212567295U
Application number: CN202021651812.XU
Authority: CN
Inventors: 李劲生; 史颖琴
Original assignee: Nanjing Perlove Medical Equipment Co Ltd
Current assignee: Nanjing Perlove Medical Equipment Co Ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-02-19
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a surgical instrument calibration device based on binocular vision navigation, which comprises a near end part, a connecting part and a far end part; the upper surface of the near end part is provided with a V-shaped calibration groove, the left side surface and the right side surface of the near end part are provided with a plurality of calibration slots, and the near end part is connected with the far end part through a connecting part to form a semi-open sunken space; at least one side of the connecting part is provided with a first scale plate along the horizontal direction, and a zero scale line of the first scale plate corresponds to the far end side face of the near end part; the far end part is provided with a central line mark which is intersected with the extension line of the bottom of the V-shaped checking groove. The utility model discloses can realize measuring length, diameter, whether crooked, crooked position, thickness, the conical surface of most surgical instruments, and be applicable to the apparatus of multiple size of a dimension, still provide the optics and trail the adapter and be used for supplementary optics imaging equipment timing formation of image central point to put. The device can realize high-precision measurement and correction, and the product is easy to carry and operate, and has good application prospect.

Description

Surgical instrument calibration device based on binocular vision navigation

Technical Field

The utility model relates to the field of detection and correction tools, which are also applied to the field of medical appliances; specifically speaking, the utility model relates to a surgical instruments calibrating device based on binocular vision navigation.

Background

The surgical instruments used by doctors in the operation are divided into disposable instruments and non-disposable instruments. The disposable instrument is discarded or destroyed after being used once, but the disposable instrument needs to be disinfected repeatedly and reused. The precision of non-disposable instruments is affected by the friction, abrasion and the like, and the precision of the instruments is a great general purpose for the completion and success rate of the operation. In the binocular vision navigation-based surgery, whether the precision of the surgical instrument is standard or not is very critical. Non-standard surgical instruments can cause deviation of surgical navigation, reduce accuracy of navigation, and increase risk of surgical failure.

In order for the instrument to be used accurately, its axis and diameter must be calibrated using an instrument calibration die. The device of the utility model provides a relatively comprehensive calibration possibility, the axle center of instrument, the diameter of instrument, length, whether instrument is crooked, the sharpness of instrument etc.. Corresponding tools include instruments of various diameters, as well as sharp tools, flat tools, screws, and osteotomes, among others.

In view of the above problems, in order to ensure the precise navigation of the surgical instrument, a specific calibration device (rigid structure, special material, strong practicability) must be designed to calibrate the geometric parameters such as axis and diameter, so as to achieve the purpose of calibration, improve the accuracy of the navigation operation, and solve the practical problems.

Disclosure of Invention

The purpose of the invention is as follows: the utility model aims at providing a surgical instruments calibrating device based on two mesh vision navigation suitable for most surgical instruments precision proofreadings.

The technical scheme is as follows: in order to achieve the above object, the present invention provides a surgical instrument calibration device based on binocular vision navigation, which comprises a proximal portion, a connecting portion and a distal portion; the upper surface of the near end part is provided with a V-shaped calibration groove, the left side surface and the right side surface of the near end part are provided with a plurality of calibration slots, and the near end part is connected with the far end part through a connecting part to form a semi-open sunken space; at least one side of the connecting part is provided with a first scale plate along the horizontal direction, and a zero scale line of the first scale plate corresponds to the far end side face of the near end part; the far end part is provided with a center line mark which is intersected with an extension line of the bottom of the V-shaped checking groove.

The utility model aims to provide a precision correction tool to satisfy all types of surgical instruments and all sizes as far as possible. Wherein the main surgical instruments include:

(1) cylindrical surgical instruments, such as … …, require calibration of the instrument's diameter, path, and whether bending has occurred;

(2) tips for calibrating flat tools, such as osteotomes, … …, and the like;

(3) for correcting the taper angle of sharp instruments and screw tips, such as orthopedic mouth openers, screws with tips;

(4) for assisting optical imaging equipment (such as a probe) in calibrating an imaging center region;

the V-shaped check groove is used for placing a cylindrical surgical instrument, the surgical instrument is rotated in the V-shaped check groove, the center line mark of the opposite side distal end portion is visually observed, the V-shaped check groove is used for evaluating whether the surgical instrument is deformed or not, an operator can conveniently visually observe, the proximal end portion and the distal end portion form a concave space, and meanwhile, the weight of a product is favorably reduced.

Furthermore, the upper surfaces of the proximal portion and the distal portion are located on the same horizontal plane, and are provided with a plurality of optical tracking adapters, the optical tracking adapters are made of special materials for reflecting infrared light, and have the functions of being recognized by infrared light absorbing equipment and converted into digital images, finally calculating the position information of the optical tracking adapters and assisting the optical imaging equipment in adjusting the position of an imaging center.

Furthermore, a downward-concave reference plane is arranged at the position, corresponding to any side edge, of the outer edge of the upper surface of the proximal end portion, a second scale plate is arranged on the side wall of the reference plane in the vertical direction, and zero scale marks of the second scale plate correspond to the reference plane, so that the calibration device can be used for calibrating the tip of the flat tool and measuring the tip of the flat tool with the accuracy of millimeter level.

As the utility model discloses a further optimization, connecting portion are two connecting rods at same horizontal plane, the junction of connecting rod and proximal end portion is the pitch arc design, conveniently snatchs, carries, and possesses the industrial design aesthetic feeling.

In order to reduce the weight of the whole device, the proximal end face and/or the lower surface of the proximal end portion are/is internally provided with a groove to form a hollowed-out space, it is necessary to supplement that the hollowed-out space is designed to ensure that the side walls of the left side face and the right side face of the proximal end portion have a certain thickness, because the calibration slot is a cylindrical groove penetrating through the side walls of the calibration slot, a cylindrical surgical instrument can be inserted into the calibration slot matched with the size of the cylindrical surgical instrument during calibration, and the surgical instrument can be intuitively detected whether the surgical instrument is bent or not by rotating the surgical instrument in the cylindrical groove in a different position.

Specifically, the plurality of calibration slots are distributed in an array or spiral shape, the diameters of the calibration slots are different, and the inner cavities of the calibration slots are cylindrical.

Further, any outer side face and/or bottom face of the proximal end portion and/or the connecting portion is/are provided with one or more pivot holes, inner cavities of the pivot holes are conical, and the diameters and the conical degrees of the inner conical faces of the pivot holes are designed in a differentiated mode.

The proximal portion, the connecting portion and the distal portion are rigid components of an integrated structure, and are preferably made of medical stainless steel materials.

Has the advantages that: the utility model can measure the length, diameter, bending position, thickness and conical surface of most surgical instruments, and is suitable for instruments with various sizes; in addition, still relate to a plurality of optical tracking adapters and be used for assisting optical imaging equipment timing formation of image central point to put, the device can realize high accuracy measurement and proofreading, and the product easily carries and operates, has good application prospect.

Drawings

FIG. 1 is a perspective view of a calibration device according to embodiment 1;

FIG. 2 is a perspective view of the calibration device according to embodiment 1;

fig. 3 is a schematic view of the distal face of the proximal portion of the calibration device described in example 1.

Detailed Description

The technical solution of the present invention will be further described with reference to the following detailed description and the accompanying drawings.

This embodiment discloses a surgical instruments calibrating device based on binocular vision navigation, as shown in the figure, wherein main surgical instruments include:

(2) tips for calibrating flat tools, such as osteotomes, … …, and the like;

Further, in this embodiment, as shown in fig. 1 and fig. 2, the upper surfaces of the proximal portion and the distal portion are located at the same horizontal plane, and a plurality of optical tracking adapters are installed, and the optical tracking adapters are made of a special material that reflects infrared light, and have functions of being recognized by an infrared light absorbing device and being converted into digital images, and finally calculating position information of the optical tracking adapters, and assisting the optical imaging device in adjusting the position of the imaging center.

Further, in this embodiment, as shown in fig. 1, 2 and 3, a downwardly concave reference plane is disposed at a position corresponding to any side edge of the outer edge of the upper surface of the proximal portion, a second scale plate is disposed on a side wall of the reference plane along the vertical direction, and a zero scale line of the second scale plate corresponds to the reference plane; the design can be used to calibrate the tip of a flat tool and make measurements on it with an accuracy of the order of millimeters.

As a further optimization of the utility model, the connecting parts are two connecting rods on the same horizontal plane; the junction of connecting rod and proximal end portion is the pitch arc design, conveniently snatchs, carries, and possesses the industrial design aesthetic feeling.

In order to reduce the weight of the whole device, a groove is formed inwards on the proximal end face and/or the lower surface of the proximal end part to form a hollow space; it should be added here that the design of the hollowed space should ensure that the side walls of the left and right sides of the proximal portion have a certain thickness, because the calibration slot is a cylindrical groove penetrating through the side wall, the cylindrical surgical instrument can be inserted into the calibration slot adapted to the size of the surgical instrument during calibration, and the surgical instrument can be intuitively detected whether to bend or not by rotating the surgical instrument in the cylindrical groove at a different position.

Further, in this embodiment, as shown in fig. 3, one or more pivot holes are disposed on any outer side surface and/or bottom surface of the proximal portion and/or the connecting portion, the inner cavity of the pivot hole is conical, and the diameters and the taper of the inner conical surface of the pivot holes are designed differently.

Claims

1. The utility model provides a surgical instruments calibrating device based on binocular vision navigation which characterized in that: comprises a proximal end part, a connecting part and a distal end part; the upper surface of the near end part is provided with a V-shaped calibration groove, the left side surface and the right side surface of the near end part are provided with a plurality of calibration slots, and the near end part is connected with the far end part through a connecting part to form a semi-open sunken space; at least one side of the connecting part is provided with a first scale plate along the horizontal direction, and a zero scale line of the first scale plate corresponds to the far end side face of the near end part; the far end part is provided with a center line mark which is intersected with an extension line of the bottom of the V-shaped checking groove.

2. The binocular vision navigation-based surgical instrument calibration device of claim 1, wherein: the upper surfaces of the proximal end part and the distal end part are positioned on the same horizontal plane, and a plurality of optical tracking adapters are installed.

3. The binocular vision navigation-based surgical instrument calibration apparatus of claim 1 or 2, wherein: the outer edge of the upper surface of the proximal end portion corresponds to the position of any side edge and is provided with a reference plane which is concave downwards, the side wall of the reference plane is provided with a second scale plate along the vertical direction, and the zero scale line of the second scale plate corresponds to the reference plane.

4. The binocular vision navigation-based surgical instrument calibration device of claim 3, wherein: the connecting part is two connecting rods on the same horizontal plane.

5. The binocular vision navigation-based surgical instrument calibration device of claim 4, wherein: the junction of connecting rod and proximal end portion is the pitch arc design.

6. The binocular vision navigation-based surgical instrument calibration apparatus of claim 4 or 5, wherein: the proximal and/or lower surface of the proximal portion is/are provided with a recess inwardly.

7. The binocular vision navigation-based surgical instrument calibration device of claim 6, wherein: the calibration slots are distributed in an array or spiral shape, and the diameter of each calibration slot is different.

8. The binocular vision navigation-based surgical instrument calibration device of claim 7, wherein: the inner cavity of the calibration slot is cylindrical.

9. The binocular vision navigation-based surgical instrument calibration device of claim 1, wherein: any outer side surface and/or bottom surface of the proximal end part and/or the connecting part is/are provided with one or more pivot holes, and the inner cavities of the pivot holes are conical.

10. The binocular vision navigation-based surgical instrument calibration device of claim 1, wherein: the proximal portion, the connecting portion, and the distal portion are integral structural rigid members.